Answer:
The correct answer is - the hypothalamus.
Explanation:
The generation of action potentials or nerve impulses generated in the neurons within the hypothalamus which result in the secretion of the hormones.
Hypothalamus is the part of the brain that plays many roles in the body including homeostasis by the secretion of the hormones which are released due to the nerve impulses generated in the nerves present within the hypothalamus.
Answer: b and c
Explanation:
B. Can vary force of contraction.
C. By varying calcium entering the cell.
Planets.
Here:
About 99% of all matter contained in the solar nebula now exist in<u> planets</u>.
Answer:
Genotype: 100% or 4/4 of the progeny will be heterozygous for the trait, Yy.
Explanation:
<u>Available data:</u>
- Two plants differ in the seed color they produce.
- One plant produces green seeds, the other produces yellow seeds.
- Yellow is the dominant phenotype, over green which is the recessive phenotype
- The parental plants are true-breeding
Let us say that the allele Y expresses yellow color and is dominant over the allele y which expresses the green color and in the recessive one.
Cross: a green-seeded plant with a yellow-seeded plant
Parental) YY x yy
Phenotype) Yellow seeds Green seeds
Gametes) Y Y y y
Punnet square) Y Y
y Yy Yy
y Yy Yy
F1) Phenotype: 100% of the progeny will be yellow-seeded
Genotype: 100% or 4/4 of the progeny will be heterozygous for the trait
